What on earth are you talking about? Operation overlord wouldnt have suceeded, and you're grandaddy would be long dead if there was only 1 beach for the germans to protect instead of 5. It was a joint effort for canadians, americans, and british. For everybody who would rather say "omaha" then "d-day", the only thing you pbly know about war is from what you have seen in saving private ryan.
And without Dieppe for a guideline, d-day would have been an enormous failure. So you can thank canadian and british commandos for that.
It might be hard for you to believe, but we all had grandfathers. All of a sudden, your grandad's Omaha is more important than that of the combined Juno, Utah, Gold, Sword, and Omaha? I fail to see the logic in that.